(4s)-4-Hydroxy-3,4-dihydro-2h-1λ6-benzothiopyran-1,1-dione CAS 1211548-70-7
| CAS No. | 1211548-70-7 |
| Molecular Formula | C9H10O3S |
| Molecular Weight | 198.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(4s)-4-Hydroxy-3,4-dihydro-2h-1λ6-benzothiopyran-1,1-dione (CAS 1211548-70-7) is a high-purity analytical reference standard with the molecular formula C9H10O3S and a molecular weight of 198.24 g/mol.
Based on its molecular formula C9H10O3S, (4s)-4-Hydroxy-3,4-dihydro-2h-1λ6-benzothiopyran-1,1-dione contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 198.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H10O3S |
| Molecular Weight | 198.24 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Sulfur Atoms | 1 |
Related s Standards
- (4r)-4-Hydroxy-3,4-dihydro-2h-1λ6-benzothiopyran-1,1-dione (CAS 1308650-41-0)
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Recommended Standards
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- Pitolisant impurity 25 (CAS 2307451-04-1)
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- Semaglutide impurity 37 (CAS CATO-C4X-222637)
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